ICCAS OpenIR
Surface modification of montmorillonites by chlorosilanes
Zhao, CG; Feng, M; Gong, FL; Yang, MS
2003-08-01
Source PublicationCHINESE JOURNAL OF CHEMISTRY
ISSN1001-604X
Volume21Issue:8Pages:1031-1034
AbstractMontmorillonite was modified by chlorosilane derivatives (trimethylchlorosilane and tert-butyldimethylchlorosilane) based on the reaction between OH group and chlorosilane. Fourier-transformed infrared spectra (FTIR) confirmed that chlorosilanes did react with the OH groups of montmorillonite. The effect of reaction time and dispersing agents on the intercalation was studied by wide angle X-ray diffraction (WAXD) method. Further experiments proved that there is no reactive OH group on the surface of layers in the interlayer galleries of montmorillonite. The cation exchange capacity (CEC) of montmorillonites was measured, showing that after modification by chlorosilane derivatives, CEC values drastically decreased. The dispersibility measurements of montmorillonites were conducted, which showed that the dispersibility of modified montmorillonites both in H2O and toluene were improved due to the decrease of attractions of particles and layers.
KeywordMontmorillonite Chlorosilane Modification Dispersibility
Indexed BySCI
Language英语
WOS IDWOS:000185013800010
PublisherSCIENCE CHINA PRESS
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Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/81038
Collection中国科学院化学研究所
Corresponding AuthorYang, MS
Affiliation1.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, State Key Lab Engn Plast, Beijing 100080, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Zhao, CG,Feng, M,Gong, FL,et al. Surface modification of montmorillonites by chlorosilanes[J]. CHINESE JOURNAL OF CHEMISTRY,2003,21(8):1031-1034.
APA Zhao, CG,Feng, M,Gong, FL,&Yang, MS.(2003).Surface modification of montmorillonites by chlorosilanes.CHINESE JOURNAL OF CHEMISTRY,21(8),1031-1034.
MLA Zhao, CG,et al."Surface modification of montmorillonites by chlorosilanes".CHINESE JOURNAL OF CHEMISTRY 21.8(2003):1031-1034.
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